Update app.py

app.py

@@ -16,6 +16,7 @@ from langchain.agents import AgentExecutor, create_tool_calling_agent
 from langchain.tools import Tool
 from langchain import hub
 import google.generativeai as genai  # Fallback if needed
+from langchain_community.chat_models import ChatGoogleGenerativeAI
 
 
 load_dotenv()